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4525VQH50A21-86AA20

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Description & Features

Designed for high-pressure, high-speed hydraulic service, the 4525VQH50A21-86AA20 is a Vickers by Danfoss VQ(H) Series vane pump built on a cast iron housing with Buna-N seals. It delivers a flow rate of approximately 107 litres per minute and is engineered for sustained volumetric efficiency across demanding duty cycles.

This pump is well-suited for a broad range of industrial applications, including plastics machinery, press machines, die casting, machine tools, primary metals, pulp and paper, wood processing, oil and gas, marine, and general industrial use. The VQ(H) Series design prioritizes longer service life and consistent performance under the pressure and speed conditions typical of these environments.

SKU: 02-306434-1

Supplier Part Number (MPN): 02-306434-1

Specifications

Brand
Vickers by Danfoss
Design Code
20
Dimensions
16.43 in L x 8.38 in W x 6.53 in H
Displacement
162.3 cc/rev Shaft, 36.4 cc/rev Cover
Drive Shaft Type
Straight Keyed
Flow Rate
50 gpm Shaft, 21 gpm Cover
Housing Material
Iron
Maximum Operating Pressure
3500 psi
Mounting Type
SAE 4-Bolt Flange
Number of Stages
2
Outlet Position From Cover Wrt Inlet
O1-Opposite O2-135 CCW
Pressure
High-Pressure
Pump Type
Vane Pump Flex Plate, Quiet
Rotation Direction
Clockwise
Seal Material
Nitrile
Series
VQH Series
Shaft
86 - 3/8 in Square Key
Speed Rating
2200 rpm, 2500 rpm
Vane Type
Fixed Displacement

Product Questions & Answers (1)

Question by: Scott W on Jul 20, 2025, 6:31 PM
what industries is this pump actually built for? got a wood processing line and trying to figure out if it fits before we order
Answer by: Customer Support on Jul 22, 2025, 5:57 PM
Wood processing is one of the named applications for this pump, so you're in good shape there. It also covers plastics machinery, press machines, die casting, machine tools, primary metals, pulp and paper, oil and gas, marine, and general industrial use. The VQ(H) Series was put together with demanding duty cycles in mind, so it handles the kind of sustained workloads common in those environments.

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